CHEMICALLY ENHANCED PRODUCTION

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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE PRSS Technology Forum Kuantan,
Pahang 15 - 17 September 2002 Khairul Nizam M
Zaini (Petronas Carigali Sdn Bhd) A Rahman
Yunus (Champion Technologies Inc.)
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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE
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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE
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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE
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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE

• INTRODUCTION
• Waxy condensate suspected as a contributing
  factor to process and operational upsets.
• Suspected wells were shut-in or flow at
  recommended choke size.
• Investigative study was conducted.
• Objectives of study
• Identify the source extent of the problem.
• Formulate an appropriate solution to overcome the
  problem.

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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE

• INVESTIGATIVE STUDY
• Activities
• In-situ measurements.
• Process profiling.
• Laboratory analysis.
• Results
• Confirmed that wax will form at current operating
  temperature.
• Identified several wells as potential
  contributors.
• Short listed two wells.

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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE

• ACTIONS TAKEN
• Conducted a pilot test.
• Identified a suitable chemical.
• Managed to reduce the pour point at an acceptable
  level.
• Determined the optimum dosage of PPD treatment.

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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
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• RECOMMENDATIONS / IMPLEMENTATION
• Bean up the suspected two wells to their
  potential.
• Continue PPD injection at the two wells at
  optimum dosage.
• Carry out monthly visit for chemical injection
  optimization.

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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE
WELL A
Pre Treatment
Post Treatment
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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE
WELL B
Pre Treatment
Post Treatment
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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE
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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
CONDENSATE
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CHEMICALLY ENHANCED PRODUCTION - MANAGING WAXY
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THANK YOU